GB1315245A - Method and apparatus for welding reinforcing members to shadow masks - Google Patents
Method and apparatus for welding reinforcing members to shadow masksInfo
- Publication number
- GB1315245A GB1315245A GB1524971*[A GB1524971A GB1315245A GB 1315245 A GB1315245 A GB 1315245A GB 1524971 A GB1524971 A GB 1524971A GB 1315245 A GB1315245 A GB 1315245A
- Authority
- GB
- United Kingdom
- Prior art keywords
- welding
- members
- mask
- ring
- clamping members
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J9/00—Apparatus or processes specially adapted for the manufacture, installation, removal, maintenance of electric discharge tubes, discharge lamps, or parts thereof; Recovery of material from discharge tubes or lamps
- H01J9/02—Manufacture of electrodes or electrode systems
- H01J9/14—Manufacture of electrodes or electrode systems of non-emitting electrodes
- H01J9/142—Manufacture of electrodes or electrode systems of non-emitting electrodes of shadow-masks for colour television tubes
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Electrodes For Cathode-Ray Tubes (AREA)
- Resistance Welding (AREA)
- Butt Welding And Welding Of Specific Article (AREA)
Abstract
1315245 Welding by pressure TUBAL INDUSTRIES Inc 17 May 1971 [22 June 1970] 15249/71 Heading B3R In a method of welding a reinforcing ring 12 to the rear flange 14 of a colour television shadow mask 10 the ring 12 and then the mask 10 are placed on a set of support members 21 having external and internal locating members 24, 22, radially movable clamping members 26 are moved outwardly to clamp the mask 10 against the members 24 and a set of spot welding electrodes 52 moved to press the ring 12 against the flange 14 and then energized to provide a series of spot welds. Electrodes 52 are moved by air cylinders 54 and a timing circuit controls the energizing of the air cylinders and electrodes so that they operate sequentially in three separate sets. Adjustable blocks 56 and tabs 60 on the clamping members 26 provide electrical connections for the welding current. Air operated cylinders (66, Fig. 3, not shown) located at the corners of the mask urge the ring 12 against the flange 14 prior to welding. Radial expansion of the clamping members 26 is effected by a rotary air cylinder 38 which turns a spiral groove cam 36. Roller assemblies 28, 30 on the clamping members 26 engage fixed guide grooves while rollers 32 engage the spiral grooves 34 in the cam 36.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US4813270A | 1970-06-22 | 1970-06-22 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1315245A true GB1315245A (en) | 1973-05-02 |
Family
ID=21952906
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB1524971*[A Expired GB1315245A (en) | 1970-06-22 | 1971-05-17 | Method and apparatus for welding reinforcing members to shadow masks |
Country Status (7)
| Country | Link |
|---|---|
| US (1) | US3668362A (en) |
| JP (1) | JPS5428712B1 (en) |
| BE (1) | BE768642A (en) |
| DE (1) | DE2130160A1 (en) |
| FR (1) | FR2099274A5 (en) |
| GB (1) | GB1315245A (en) |
| NL (1) | NL7108137A (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4610636A (en) * | 1985-05-22 | 1986-09-09 | Rca Corporation | Frame centering apparatus |
| US6621036B2 (en) | 2001-02-08 | 2003-09-16 | General Motors Corporation | Programmable pogo welding apparatus and method |
| US6429397B1 (en) * | 2001-02-08 | 2002-08-06 | General Motors Corporation | Programmable pogo welding apparatus and method |
| US9999546B2 (en) | 2014-06-16 | 2018-06-19 | Illinois Tool Works Inc. | Protective headwear with airflow |
| US11812816B2 (en) | 2017-05-11 | 2023-11-14 | Illinois Tool Works Inc. | Protective headwear with airflow |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2468001A (en) * | 1948-02-09 | 1949-04-19 | Swift Electric Welder Company | Means for manufacturing automobile wheels |
| US2881334A (en) * | 1956-08-30 | 1959-04-07 | Maxim Electronics Ltd | Electric circuit for high-speed spot or split-seam welding |
| US3309493A (en) * | 1964-02-21 | 1967-03-14 | Sylvania Electric Prod | Multiple bonding |
-
1970
- 1970-06-22 US US48132A patent/US3668362A/en not_active Expired - Lifetime
-
1971
- 1971-05-17 GB GB1524971*[A patent/GB1315245A/en not_active Expired
- 1971-06-14 NL NL7108137A patent/NL7108137A/xx unknown
- 1971-06-17 BE BE768642A patent/BE768642A/en unknown
- 1971-06-18 DE DE19712130160 patent/DE2130160A1/en active Pending
- 1971-06-21 FR FR7122444A patent/FR2099274A5/fr not_active Expired
- 1971-06-22 JP JP4456571A patent/JPS5428712B1/ja active Pending
Also Published As
| Publication number | Publication date |
|---|---|
| BE768642A (en) | 1971-11-03 |
| NL7108137A (en) | 1971-12-24 |
| FR2099274A5 (en) | 1972-03-10 |
| JPS5428712B1 (en) | 1979-09-18 |
| DE2130160A1 (en) | 1971-12-30 |
| US3668362A (en) | 1972-06-06 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PS | Patent sealed [section 19, patents act 1949] | ||
| PLE | Entries relating assignments, transmissions, licences in the register of patents | ||
| PLNP | Patent lapsed through nonpayment of renewal fees |